专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS5677050A COOLING DEVICE OF LARGE SIZE INGOT 失效
公开(公告)号：JPS5677050A
公开(公告)日：1981-06-25
申请号：JP15364079
申请日：1979-11-29
申请人： NIPPON MINING CO
发明人： YOSHIKAWA KOUSUKE , YAMAZAKI TAKAYUKI
IPC分类号： B22D9/00 , B22D45/00
摘要： PURPOSE:To forcibly cool a large-size ingot, minimize the generation of cracks in products and improve productivity by allowing a carriage equipped with plural rows of water spray pipes to self run and spraying water to the ingot thereby cooling the same. CONSTITUTION:On starting the casting, a carriage 9 moves to the right end of rails 8 and a cooling fan 34 starts cooling for the mold 1 remotest from a port 3. When a spout 4 ends pouring into the mold 1 remotest from the port 3 and starts pouring into the next mold 1, the water spray pipes 19 of the 1st row starts spraying, and after the preset preliminarily announced period , the carriage 9 moves by a distance (d) and stops for one cooling period. During this time, the 1st mold 1 right after the pouring is sprayed with ultrafine mist spray water, and the 2nd mold 1 is cooled by the fan 34. At the timing when the pouring of the 2nd mold 1 is performed, the water spray pipes 19 of the 2nd row start spraying and after the preliminarily announced period, the carriage 9 further advances by 1 step and stops by the cooling period. During this time, the 1st, 2nd molds 1 are sprayed and the 3rd mold 1 is precooled by the fan 34. Above described precedures are repeated.

2. 发明专利

JPS59167687A Method of effectively utilizing exhaust heat 失效
标题翻译：有效利用排气热的方法
公开(公告)号：JPS59167687A
公开(公告)日：1984-09-21
申请号：JP4148783
申请日：1983-03-15
申请人： Nippon Mining Co
发明人： MATSUMOTO SHINGO , YOSHIKAWA KOUSUKE
IPC分类号： F27D17/00

3. 发明专利

JPS57169592A FLOW RATE REGULATION OF MOLTEN METAL 失效
公开(公告)号：JPS57169592A
公开(公告)日：1982-10-19
申请号：JP5294581
申请日：1981-04-10
申请人： NIPPON MINING CO
发明人： YOSHIKAWA KOUSUKE , YAMAZAKI TAKAYUKI
IPC分类号： B22D37/00 , B22D39/00 , C22B19/32 , F27D3/14

4. 发明专利

JPS54107422A PURIFICATION OF DISTILIED ZINC 失效
公开(公告)号：JPS54107422A
公开(公告)日：1979-08-23
申请号：JP1364378
申请日：1978-02-10
申请人： NIPPON MINING CO
发明人： YOSHIKAWA KOUSUKE
IPC分类号： C22B19/32 , C22B17/06 , C22B19/04
摘要： PURPOSE:To separate distilled zinc into Cd-containing Zn and Pb and Fe-containing Zn for recovery by subjecting molten distilled zinc containing Cd, Pb, Fe, etc., to a vacuum distillation at a specific temperature. CONSTITUTION:The distilled zinc 20 containing 1.0 to 1.8% Pb, 0.03 to 0.09% Cd, and 0.012 to 0.024% Fe is introduced from the cooling and tapping well 16 into the vacuum container 1 through the leveling tank 11. In the vacuum container 1, it is passed through the evaporating trough 2 heated to 450 to 600 deg.C by the heating and temperature holding apparatus 17, whereupon Cd and Zn are evaporated and then purified Zn and Cd-containing Zn are condensed at the purified Zn condenser 3 and the Cd-containing Zn condenser 4, respectively, each being provided with the cooler 23, and then stored in the storage tanks 12 and 13. The purified Zn in the storage tank 12 contains

5. 发明专利

JPS58153741A RECOVERY OF THALLIUM 失效
公开(公告)号：JPS58153741A
公开(公告)日：1983-09-12
申请号：JP3577382
申请日：1982-03-09
申请人： NIPPON MINING CO
发明人： OGATA TAKASHI , AKAGI SUSUMU , KASAI SHIYUNICHI , YOSHIKAWA KOUSUKE
IPC分类号： C22B61/00 , C01G15/00 , H01S3/109
摘要： PURPOSE:To easily and certainly obtain a high-purity Ta-contg. aqueous solution, by bringing an aqueous solution of Ta-contg. heavy metals as impurities into contact with dialkyl dithiocarbamate. CONSTITUTION:An aqueous solution contg. heavy metals, e.g. Cd, Pb and As as impurities is adjusted to pH below 3, esp. about 2, and brought into contact with dialkyl dithiocarbamate, so that a high purity Ta-contg. aqueous solution having the contents of said heavy metals controlled below 0.0006wt% can be obtained by one stage. Said dialkyl dithiocarbamate is pref. sodium dimethyl or diethyl carbamate, and its amount to be added is above one equiv. to, esp. 1-5 equiv. to the amt. of the heavy metals to be removed.

6. 发明专利

JPS5832567A MANUFACTURE OF METALLIC SHOT 失效
公开(公告)号：JPS5832567A
公开(公告)日：1983-02-25
申请号：JP12869581
申请日：1981-08-19
申请人： NIPPON MINING CO
发明人： YOSHIKAWA KOUSUKE , AKAGI SUSUMU
IPC分类号： B22D21/00 , B22D25/02
摘要： PURPOSE:To obtain metallic shot of desired uniform grain sizes by placing the tip of a nozzle on or blow the water surface and dropping molten metal through the nozzle thereby solidifying the same. CONSTITUTION:Metal of 300-600 deg.C m.p., for example, Zn, Cu, Ag, Sn, Pb, Al or their allot is melted by using a nozzle receiver 1 made of refractories. The molten metal is dropped through a nozzle 4 of which the tip is placed on or below the water surface 8 of the water 10 stored in a water tank 7 into the water 10. The temp. of the water 10 is kept at 60-70 deg.C by replenishing cold water therein. The molten metal cools and solidifies to form shot 12. The formed shot 12 is captured with a removing cage 9 in the bottom part of the tank 7. The yield is 93-98%.

7. 发明专利

JPS55164046A DISTILLATED ZINC PURIFIER 失效
公开(公告)号：JPS55164046A
公开(公告)日：1980-12-20
申请号：JP7058979
申请日：1979-06-07
申请人： NIPPON MINING CO
发明人： YOSHIKAWA KOUSUKE , SATOU KAZUHIRO
IPC分类号： C22B19/32
摘要： PURPOSE:To purify distillated zinc using a small amount of energy consumption by a method wherein molten distilled zinc introduced into a vacuum container is heated and evaporated while being flowed through an evaporation through and purified zinc is discharged through a condenser with recovery through located at lower part of the upper container. CONSTITUTION:Molten distillated zinc 20 is continuously supplied 5 from the high temperature portion of a cooling tapping well 16 through a level tank 11 to evaporation trough 2 in a vacuum chamber 1. The molten distillated zinc 20 is heated to a specified temperature by heaters 4 installed around the container wall, so that distillated zinc and Cd are raised, is passed through the center hole of recovery through 7, and exchanges heat with a condenser 3 installed above the container 1. Zinc condensed and liquefied is flowed along the wall and is collected in the through 7, then is discharged 6 to a product reservoir 12. Meanwhile, the remaining Zn contg. Pd and Fe is returned 9 to the tapping well 16. The container 1 is maintained at a specified vacuum during operation by a suction pipe 8 connected to a vacuum source 14.

8. 发明专利

JPS54152621A SPONGE METAL MOLDING AND CONVEYING APPARATUS 失效
公开(公告)号：JPS54152621A
公开(公告)日：1979-12-01
申请号：JP6103978
申请日：1978-05-24
申请人： NIPPON MINING CO
发明人： YOSHIKAWA KOUSUKE , TAUCHI YUUJI
IPC分类号： C22B58/00 , B30B11/00 , B30B11/02 , C22B1/248 , C22B3/00 , C22B3/46 , C22B9/00 , C22B17/00 , C22B17/06
摘要： PURPOSE:T make supply of sponge metal to a melting furnace completely automatic and to assure safe operation by setting a sponge metal dehydrater, a compression molding machine, a conveyor, etc. CONSTITUTION:Sponge metal such as sponge cadmium is supplied to liquid separating hopper 4, dehydrated, stored in intermediate hopper 12, and supplied to vibrating screen 4. The metal is crushed with a plurality of rollers 15 and fed to hopper 19 of molding press 18. Minus mesh fine grains and liquid are stored in receiver 20 and discharged. The sponge metal is stored in receiving frame 22 with slide valve 21, moved below pressurizing plunger 23, and molded into disc-shaped sponge cakes 24, which are then supplied to melting furnace 27 with conveyor 26 through shoot 25. Thus, sponge metal dehydration-molding and supply to furnace 27 are carried out safely without using manpower.

9. 发明专利

JPS58222177A Preparation of zinc shots for blasting 失效
标题翻译：用于喷砂的锌合金制备
公开(公告)号：JPS58222177A
公开(公告)日：1983-12-23
申请号：JP10370282
申请日：1982-06-16
申请人： Nippon Mining Co Ltd
发明人： AKAGI SUSUMU , YOSHIKAWA KOUSUKE , OOKURA TAKAHIKO
IPC分类号： B24C11/00 , B01J2/02 , B01J2/06 , B22F9/08 , B24D3/00 , C09K3/14
摘要： PURPOSE: To prepare small-sized zinc shots suitale for blasting consistently with good yield, by allowing molten zinc to drop through a nozzle from a sump into water under controlled conditions of temperature and depth of molten metal, nozzle size, distance between nozzle and surface of water, temperature of water, etc.
CONSTITUTION: A ceramic nozzle 15 with an orifice diameter of 0.3W0.6mm is provided at the bottom of a sump 13 in a tank 10 which is divided into a molten metal pouring chamber 12 and the sump 13 and a molten zinc heated to 540W 600°C is supplied to the tnak 10 so that the depth of the molten metal may be 30W60cm. Then the molten zinc is allowed to drop through the nozzle 15 into a water tank 1 which is filled with water at 30W50°C to such a level that the distance from the bottom end of the nozzle 15 to the surface of water may be 10mm or smaller. The molten zinc is allowed to cool and solidify and the zinc shots thus formed are led into a taking-up chamber 13 along an inclined bottom wall 4 and are taken out into a collecting container 5.
COPYRIGHT: (C)1983,JPO&Japio
摘要翻译：目的：为了准备小尺寸的锌合金喷丸，可以以良好的产量进行喷砂，通过使熔融锌在熔融金属的温度和深度，喷嘴尺寸，喷嘴和表面之间的距离的受控条件下，通过喷嘴从水槽中滴入水中水，温度等。构成：孔径为0.3-0.6mm的陶瓷喷嘴15。设置在容器10的底部，该容器10被分为熔融金属浇注室12和贮槽13，并且加热到540-600℃的熔融锌被供应到塔尼克10，使得深度熔融金属可以是30-60cm。然后使熔融的锌通过喷嘴15落入一个水箱1中，该水箱1填充了30-50℃的水，使得从喷嘴15的底端到水面的距离可以为10mm。或更小。使熔融的锌冷却固化，并将这样形成的锌射流沿着倾斜的底壁4引入卷取室13，并且被取出到收集容器5中。

10. 发明专利

JPS58126941A MANUFACTURE OF THALLIUM 失效
公开(公告)号：JPS58126941A
公开(公告)日：1983-07-28
申请号：JP750482
申请日：1982-01-22
申请人： NIPPON MINING CO
发明人： SUZUKI TSUNEO , YOSHIKAWA KOUSUKE , AKAGI SUSUMU
IPC分类号： C22B61/00
摘要： PURPOSE:To manufacture metallic Tl of high purity by making a leached slurry of a Tl-contg. substance using SO2 basic, and after filtering, adding sulfuric acid and H2O2 to the filtrate, carrying out cementation with zinc plate under acidic condition, and melting using molten NaOH bath. CONSTITUTION:Electrolytic solution of lead, clean slag (generally contains 10- 20% Tl and Zn, Cd etc.) produced in Cd refining process is leached with SO2. That is, Na2SO3 is added to the clean slag or SO2 gas is blown into it to reduce Tl from trivalent to monovalent and water soluble. Generated leached slurry is transferred to a leaching tank, adjusted to above pH9.0 by adding NaOH etc., and alkali leaching operation is performed while agitating at room temperature -80 deg.C. Alkali neutralized leach is filtered using a filter press. A small quantity of H2O2 is added to the filtrate, and substitution using a zinc plate is performed keeping the filtrate at pH2-4 with sulfuric acid. Fine granular sponge Tl obtained is dehydrated by pressing, put in molten NaOH bath at 350 deg.C and melted. Impurities are moved to soda slag, and metallic Tl of high purity is obtained.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式